Mordanting agents for anionic organic compounds are described which comprise recurring units of the formula: ##STR1## wherein R1 is hydrogen or methyl; A is methylene or methylene sustituted by C1 -C5 alkyl;
N is 0 or 1;
R2 is alkyl, and
X is an acid radical.
They are particularly suitable for hindering diffusion of dyes in hydrophilic colloid media e.g. hydrophilic colloid layers of a photographic silver halide element, for hindering diffusion of color couplers in such layers e.g. layers of a radiographic silver halide color element and for the formation of color images by the relief imbibition process.
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De Winter, Walter F., Timmerman, Daniel M., Van Hoof, Albert E.
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| 4513080, | May 06 1982 | AGFA-Gevaert AG | Photographic silver halide containing recording material with crosslinked microgel particles |
| 5411845, | Feb 17 1992 | Imperial Chemical Industries PLC | Polymeric film coated with a subbing layer containing cross-linking agent and (N-substituted) monoallylamine polymer |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 30 1971 | Agfa-Gevaert, N.V. | (assignment on the face of the patent) | / |
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